sha256Hash fails to hash symlink to directory

[andreafalzetti]

Bug description

When building the image for JetBrains Rider, we hit this error:

 build  components/ide/jetbrains/image:download-rider-latest  (version 249f098fb2645cf5fadbd511dcee0ec35561bb05)

[components/ide/jetbrains/image:download-rider-latest] build started (version 249f098fb2645cf5fadbd511dcee0ec35561bb05)
[components/ide/jetbrains/image:download-rider-latest] package build failed
[components/ide/jetbrains/image:download-rider-latest] Reason: cannot compute hash of /backend/bin/JBDevice.framework/Versions/Current: read /tmp/build/components-ide-jetbrains-image--download-rider-latest.249f098fb2645cf5fadbd511dcee0ec35561bb05/backend/bin/JBDevice.framework/Versions/Current: is a directory
:cloud:  uploading build artifacts to remote cache
build failed
Reason: build failed
FATA[0041] build failed  

In the JetBrains tar.gz there are a couple of files which are symlink other directories. Example:

• JBDevice.framework/Versions/Current
• Bridge.framework/Versions/Current

Those are the ones causing the problem

Related code in Leeway: https://github.com/gitpod-io/leeway/blob/main/pkg/leeway/provenance.go#L332
Related PR in gitpod: gitpod-io/gitpod#14524

Steps to reproduce

1. Start a workspace for this PR: [JetBrains] Add Rider & CLion to beta gitpod#14524
2. Edit components/ide/jetbrains/image/download.sh and comment out the rm commands
3. Run leeway build components/ide/jetbrains/image:download-rider-latest

Expected behavior

No response

Example repository

No response

Anything else?

No response

[meysholdt]

Context.